Bedspring



Feb. 18, 1930. GOODWYILL 1 ,748,018

BEDSPRING Filed Aug. 8. 1928 2 Shee ts'Sheet 1 mvENTo'R ATTOR N EYWITNESS: W

Feb. 18, 1930. J. a. GOODWILL 1,743,018

BEDSPRING Filed Aug. 8. 1928 2 Sheets-Sheet 2 INVENTOR I BY j I ATTORNEYPatented Feb. 18, 1930 1 UNITED ,s'rarss JOHN BROWN GOODYVILL, OFTELKWA, BRITISH COLUMBIA, CANADA snnsrmne Application filed August 8,1928. Serial No. 298,374.

1 This invention relates to improvements in bed spring bottoms, anobject of the invention being to provide a knock down frame for thesame, so that the bottom may be compactly arranged for shipment orstorage,

With the above and other objects in view,

the invention further includes the following novel features and detailsof construction, to be hereinafter more fully described, illustrated inthe accompanying drawings and pointed out in the appended claims.

In the drawings Figure 1 is a plan View of a bed spring.

bottom constructed in accordance with the invention. I i Figure 2 is anenlarged fragmentary end view. Figure 3 is a section on the line 33 ofFigure 2.

Figure 4: is an enlarged fragmentary section on the line 4-4 ofFigure'l.

Figure 5 is a section on the line 55' of Figure 4.

Figures 6 and? are perspective views partly broken away showing the siderails of the knock down frame.

Figures 8 and 9 are detail perspective views ofthe cross bars ofthegknock down frame.

A Figure 10 is a planview of the rollers with the spring bottom mountedthereon and shown in rolled condition.

I Referring to the drawings in detail wherein like characters ofreference denote corresponding parts, the invention comprises a knockdown frame formed of side rails 10 and 11 and cross bars 12 and 13. Theside rails may be formed of angle iron and are -14=-and 15. This lastmentioned slotis provided with an offset portion 16 for a purpose whichwill be hereinafter apparent.

The cross bars 12 and 13 are provided with right-angled extensions 17 attheir opposite provided near their opposite ends with slots ends andthese extensions are reduced to provide tongues 18 and shoulders 19. Thetongues are provided with inclined slots 20 which extend inwardly fromtheir side edges and have'their inner ends spaced above the a;

shoulders 19 a distance substantially equal to the thickness of the siderails 10 and 11.

. The invention further includes rollers 20 and 21. These rollers areprovided with annular transversely arranged grooves 22 G0 and 28,thegrooves 22 of the rollers 20 being provided with transverselyrectangular bottoms'as shown in Figure 4 of the drawings, so that theroller 20 may be received within the slots of the tongues 18 of the bar12 and held therein against rotation. The roller 21 is mounted forrotation in the slots 20 of the cross bar 13.

A. wire mesh 24 is adapted to be stretched over the frame and for thispurpose has one of its ends secured to the roller 20 and its other endto the roller 21 and is capable'of being wound upon or unwound from thisroller. For this purpose, the roller 21 has secured thereon a ratchetwheel 25 which is adapted to be engaged by a spring influenced dog 26which is mounted for pivotal movement upon one 'of the extensions 17 ofthe bar 13. The roller 21 is provided with a squared extension 27 forremovable engage ment with a socketed crank arm 28 as shown by dottedlines'in Figure 2. I Y

By rotating the roller 21, the wire mesh 24 may be tensioned, thetensioning not only serving to stretch the mesh over the frame, but alsoto force the rollers 20 and 21 within the slots 20 and into engagementwith the side rails 10 and 11, so as to hold the frame assembled. Ifdesired, the rollers 20 and 21 may be slightly crowned so that thetension along the longitudinal center of the wire mesh will be slightlygreater than that upon opposite sides of the center and sagging willthus be prevented.

The opposite ends of the wire mesh may be secured to the rollers byproviding the rollers with a longitudinally disposed recess 29 withinwhich is removably positioned a bar 30. The ends of the wire mesh areclamped 10o beneath the bar and the latter is held in position bymeansof screws 31.

The invention is susceptible of various changes in its form, proportionsand minor details of construction and the right is herein reserved tomake such changes as properly fall within the scope of the appendedclaims.

Having described the invention What is claimed is:

'1. In a bed spring bottom, a knock down a frame comprising side railshaving openings adjacent each end, cross bars, rightangled,

extensions at each end of the cross bars removably positioned throughthe openings, inclined slots in said extensions, a roller mounted forrotation in the slots of one bar and adapted to bear upon the side railsto prevent separation of said bar and rails, a relatively stationaryroller mounted in the slots of the other bar and preventing separationof said other bar and rails, a spring bottom having one end secured tothe stationary roller and its other end wound upon therotatable roller,and means to rotate the last mentioned roller.

2. In a bed spring bottom, a knock down frame comprising side .railshaving open ings adjacent each end, cross bars, rightangled extensionsat each end of the cross bars for passage through the openings, rollersat opposite ends of the frame to engage the rightangled extensions, aspring bottom having its opposite ends mounted upon the rollers, meansto tension the spring bottom,

and means to mount the rollers whereby tension of the spring bottom willprevent separation of the side rails and cross bars.

' 3. In a bed spring bottom, a knock-down frame comprising side railsand cross bars, extensions carried by the cross bars for removableengagement with the side rails, a spring bottom, a roller at each end ofthe spring bottom, means to mount one of the rollers for rotation in theextensions of one of the cross bars to hold said bar and side railsassembled, means to mount the other roller in the extensions of theother cross bar, whereby rotation of the first roller in one directionwill force the rails and bars into contacting engagement, and-means tohold the rotatable roller against rotation in an opposite direction.

In testimony whereof I affix my signature. v 7

JOHN BROWN GOODWILL.

